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C04 - M-Bus 10 Master to RS232/RS485 Converter
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C04 - M-Bus 10 Master to RS232/RS485 Converter
- Universal M-Bus Master converter for 10 devices with selectable RS232 or RS485 output and 1kV isolation.
Product Description
The Redisage C04 is a versatile converter that integrates M-Bus measurement infrastructure with automation systems. It functions as an M-Bus Master, supporting up to 10 meters. The unique feature of this model is its dual output interface: users can choose between RS232 and RS485 via screw terminals.
This flexibility makes it suitable for both local connections (RS232) and long-distance transmission (RS485). Key features:
• Dual Interface: Selectable RS232 or RS485
• Capacity: Up to 10 M-Bus slaves
• Isolation: 1000 VDC (protection against ground loops)
• Power Supply: 12-30 VDC or 24 VAC
• Protection: ESD on signal lines
Technical Documentation
Datasheet (DTR):
⬇ Download C04 Datasheet
Knowledge Base:
🔗 doc.redisage.com
Brand
Symbol
C04
Producer code
5903949781137
Series
Warranty
Main data
Power voltage
24 V/AC
12-30 V/DC
Galvanic isolation
RS232 1 kV/DC
RS485 1 kV/DC
Power connector
Screw terminal
Work temperature range
-40°C to +75°C
Safety measures
ESD 4 kV / 8 kV
Burst
Surge
RF
LED
Tx
Rx
Power
Serial Ports
Number of ports
2
Port type
1x RS232/RS485
Connector type
Screw terminal
Transmission speed
up to 9600 bps
variable
Data bits
7
8
Stop bits
1
2
Controll Bits
none
odd
even
M-Bus
Number of M-Bus Slave devices
up to 10
Channel capacity
up to 9600 bps
fluent
MBus Repeater
no
Isolation
1 kV/DC
Enclosure
Mounting
DIN Rail
Width in standard modules S (17.5 mm)
1M
Width
17.5 mm
Height
56.4 mm
Length
98 mm
Ingress Protection Code
IP20
Standards and Certifications
Declarations of Conformity
CE
RoHS
EMC
LVD
Norms
61000-6-2 - Immunity standard for industrial environments
61000-6-4 - Emission standard for industrial environments
About C04
C04 – Flexible M-Bus Integration
The C04 M-Bus Master converter is an essential tool for building automation integrators. It allows the connection of up to 10 meters (e.g., heat, water, gas) using the M-Bus standard to a master control system. Unlike simpler models, the C04 offers two output interfaces: RS232 and RS485. The user selects the appropriate standard by connecting wires to the corresponding screw terminals.
This functionality allows the C04 to work with both older PCs (via RS232) and modern industrial networks (via RS485), where the cable length can reach up to 1200 meters. The device is powered by a wide range of voltages (12-30 VDC or 24 VAC), making it easy to integrate into typical HVAC control cabinets.
The built-in 1kV galvanic isolation ensures the safety of the master system by separating it from the field bus. LED indicators provide immediate feedback on power status and data transmission (Tx/Rx).
Technical Specifications:- Network Capacity: Up to 10 slave devices (1.5 mA load each).
- Outputs: RS232 (Tx, Rx, GND) or RS485 (A, B).
- Isolation: 1000 VDC.
- Power Supply: 12–30 VDC / 24 VAC.
The C04 is a robust and flexible solution for small utility monitoring systems. For larger installations, check the C05-C08 series.
3 Year Warranty
Your previous questions regarding this product
1. What is the main application of the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
2. What are the data transmission parameters for the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
3. What are the dimensions and mounting method of the device?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
4. Does the C04 converter include protection features?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
5. What are the power supply requirements for the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
6. Where can I find technical documentation for the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
7. What is the warranty for the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
8. Is the C04 converter compatible with other M-Bus devices?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
9. What are the operating conditions for the C04 converter?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
10. Is it possible to customize the product to my needs?
The C04 converter enables communication between M-Bus systems and serial interfaces RS232 and RS485, allowing the connection of up to 10 slave devices simultaneously.
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